| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic image without any deterioration of an image quality and any artifact by positioning a device on two adjacent scanning lines in a specific pixel position and interpolating a sampling data obtained from the sampling position on the same radius as that of the specific pixel position. SOLUTION: A sampling clock storage part 44 supplies a stored sampling clock as a write clock W-CLK of an input memory 12, a DSP 62 loads addresses of a starting scanning line matched with a pixel position going to be interpolated at present and a next scanning line, and an address control part 50 outputs a readout clock R-XLK. An input memory 12 outputs the sampling data on the starting scanning line matched with the pixel position going to be interpolated at present and the sampling data on the next scanning line to a radial interpolation table 14 and the radial interpolation table 14 calculates the pixel data matched with the present pixel position and outputs in to a frame memory 20. |
